The U.S. Supreme Court on Monday upheld the use of a key drug used in Oklahoma's lethal injection protocol.
The lawsuit that prompted the decision was brought on by lead plaintiff Richard Glossip, an Oklahoma inmate who has been on death row for 17 years. Lawyers for the plaintiffs argued that midazolam, the first drug used in Oklahoma's three-part lethal injection protocol, can't reliably render an inmate unconscious and free of pain while the second and third drugs paralyze him and stop his heart, thus making the execution cruel and unusual punishment. Midazolam was first used in Oklahoma's botched execution of Clayton Lockett in 2014, and since then has been used in putting to death more than a dozen inmates.